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Quenching chamber for a contactor and a contactor for quenching arcs

A technology of arc suppression chamber and contactor, which is applied in the field of arc suppression chamber, and can solve the problems such as the danger of arc discharge in the arc suppression chamber under heat load

Active Publication Date: 2016-06-08
SCHALTBAU GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the known arc chambers, the flow channels are configured parallel to one another and identically, so that the discharged plasma accumulates in the area at the outlet of the flow channels and leads to a thermal load on the arc chamber and possibly Hazard of causing an arc to escape from the arc chamber

Method used

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  • Quenching chamber for a contactor and a contactor for quenching arcs
  • Quenching chamber for a contactor and a contactor for quenching arcs
  • Quenching chamber for a contactor and a contactor for quenching arcs

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Embodiment Construction

[0043] exist figure 1 A front view of the contactor 1 is shown in . The contactor 1 includes a base part 3, which has a function for driving the figure 1 The driving device 5 of the movable contact not shown in the. An arc chamber 7 is arranged on the base part 3 and connected thereto in a form-fitting manner. The arc chamber 7 is substantially mirror-symmetrical with respect to the central axis 8 with two electrical connections 9 a, 9 b. Furthermore, the arc chamber is likewise designed symmetrically to a plane, so that the illustrated front side and the not-illustrated rear side of the arc chamber 7 are identical. In addition, the arc extinguishing chamber 7 has four swingable pole plates 11 and four fixed pole plates 13, which are arranged in pairs on the front side and the on the back. Only two pivotable and two fixed pole plates 11a, b, 13a, b are shown here.

[0044] On the upper side facing away from the base part 3 , a holder 19 a is also formed by the housing 15...

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Abstract

The invention relates to a quenching chamber for quenching arcs for a contactor comprising a quenching device, a blowing unit that blows arcs into the quenching device, and a plurality of lamella-shaped arc quenching elements, between which flow channels are formed. The flow channels each have a scattering section, wherein the scattering sections of adjacent flow channels are slanted differently such that the blown air is diverted through the flow channels in different directions. The invention further relates to a contactor having such a quenching chamber.

Description

technical field [0001] The invention relates to an arc chute (Löschkammer) for contactors for eliminating arcs, the arc chute having an arc chute, a blowing device for blowing the arc into the arc chute and a number of Laminar arc arresting elements, between which flow channels are formed. Background technique [0002] Contactors with such arc chambers are used, for example, in railway operation for switching loads and for interrupting circuits with relatively high currents and high voltages. During the switching process, that is to say when the contacts are opened, an arc is generated at the contacts. Due to this arc a current is maintained between the contacts. Furthermore, considerable heat is released by the arc, which leads to burning of the contacts and thus possibly shortens the service life of the contactor. In addition to this, the entire system area affected by the arc is subjected to a high thermal load. Therefore arc chambers are used, causing a rapid collaps...

Claims

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Application Information

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IPC IPC(8): H01H9/34H01H9/44
CPCH01H9/342H01H9/346H01H9/443H01H33/08H01H33/182
Inventor A.伊尼亚托夫K.克罗伊茨波因纳
Owner SCHALTBAU GMBH